SHMBASE

Hi folks!! I'm trying to set up 3 instances in a huge machine. 2 of 3 instances have been online, but the third instance can't start because there are a shared memory conflict, as showed below: [informix@valencia01 ~]$ onstat -m shared memory not initialized for INFORMIXSERVER 'ifxorizon5' Message Log File: /informix/logs_informix/ifxorizon5/ifxorizon5.log 13:54:40 IBM Informix Dynamic Server Started. 13:54:40 Warning: The IBM IDS Growth Edition license restriction limits 13:54:40 the total shared memory size for this server to 16777216 KB. 13:54:40 The maximum allowable shared memory was reset to this size to start the database server. 13:54:40 shmget: [EEXIST][17]: key 52584801: shared memory already exists 13:54:40 mt_shm_init: can't create resident segment The key 52584801 belongs to the instance 2. I've already set different values for each instance on the parameter SERVERNUM: instance 1 = SERVERNUM 0 instance 2 = SERVERNUM 1 instance 3 = SERVERNUM 2 But the parameter SHMBASE is the same to the tree instances: SHMBASE 0x44000000L The machine has 32GB of memory: instance 1 = 14.7 GB instance 2 = 11.7 GB instance 3 will allocate nearly 4GB How can I do to calculate SHMBASE? Could you guys help me? Thanks in advance, Alberto Pessonio.

I would rather use 10,20 and 30, instead of 0,1 and 2. Anyway, set the correct INFORMIXSERVER you want deal with, then run my favorite command "onclean" , then try "oninit" again ! Good luck! Frank On Tue, Mar 6, 2012 at 12:25 PM, ALBERTO ROMEU PESSONIO FILHO < arfilho@orizonbrasil.com.br> wrote: > Hi folks!! > > I'm trying to set up 3 instances in a huge machine. > 2 of 3 instances have been online, but the third instance can't start > because > there are a shared memory conflict, as showed below: > > [informix@valencia01 ~]$ onstat -m > shared memory not initialized for INFORMIXSERVER 'ifxorizon5' > > Message Log File: /informix/logs_informix/ifxorizon5/ifxorizon5.log > 13:54:40 IBM Informix Dynamic Server Started. > 13:54:40 Warning: The IBM IDS Growth Edition license restriction limits > 13:54:40 the total shared memory size for this server to 16777216 KB. > 13:54:40 The maximum allowable shared memory was reset to this size to > start > the database server. > 13:54:40 shmget: [EEXIST][17]: key 52584801: shared memory already exists > 13:54:40 mt_shm_init: can't create resident segment > > The key 52584801 belongs to the instance 2. > > I've already set different values for each instance on the parameter > SERVERNUM: > > instance 1 = SERVERNUM 0 > instance 2 = SERVERNUM 1 > instance 3 = SERVERNUM 2 > > But the parameter SHMBASE is the same to the tree instances: SHMBASE > 0x44000000L > > The machine has 32GB of memory: > > instance 1 = 14.7 GB > instance 2 = 11.7 GB > instance 3 will allocate nearly 4GB > > How can I do to calculate SHMBASE? > Could you guys help me? > > Thanks in advance, > Alberto Pessonio. > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > --f46d04426e161624bb04ba967b65

SHMBASE doesn't matter, it is the private address within the oninit's address space at which to attach shared memory. Only the SERVERNUM will affect shared memory across instances. Make sure there isn't an existing instance with SERVERNUM 3 or that a failed startup attempt didn't leave old shared memory segments around (use onmode -ky or onclean to remove them). Art Art S. Kagel Advanced DataTools (www.advancedatatools.com) Blog: http://informix-myview.blogspot.com/ Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on my employer, Advanced DataTools, the IIUG, nor any other organization with which I am associated either explicitly, implicitly, or by inference. Neither do those opinions reflect those of other individuals affiliated with any entity with which I am affiliated nor those of the entities themselves. On Tue, Mar 6, 2012 at 12:25 PM, ALBERTO ROMEU PESSONIO FILHO < arfilho@orizonbrasil.com.br> wrote: > Hi folks!! > > I'm trying to set up 3 instances in a huge machine. > 2 of 3 instances have been online, but the third instance can't start > because > there are a shared memory conflict, as showed below: > > [informix@valencia01 ~]$ onstat -m > shared memory not initialized for INFORMIXSERVER 'ifxorizon5' > > Message Log File: /informix/logs_informix/ifxorizon5/ifxorizon5.log > 13:54:40 IBM Informix Dynamic Server Started. > 13:54:40 Warning: The IBM IDS Growth Edition license restriction limits > 13:54:40 the total shared memory size for this server to 16777216 KB. > 13:54:40 The maximum allowable shared memory was reset to this size to > start > the database server. > 13:54:40 shmget: [EEXIST][17]: key 52584801: shared memory already exists > 13:54:40 mt_shm_init: can't create resident segment > > The key 52584801 belongs to the instance 2. > > I've already set different values for each instance on the parameter > SERVERNUM: > > instance 1 = SERVERNUM 0 > instance 2 = SERVERNUM 1 > instance 3 = SERVERNUM 2 > > But the parameter SHMBASE is the same to the tree instances: SHMBASE > 0x44000000L > > The machine has 32GB of memory: > > instance 1 = 14.7 GB > instance 2 = 11.7 GB > instance 3 will allocate nearly 4GB > > How can I do to calculate SHMBASE? > Could you guys help me? > > Thanks in advance, > Alberto Pessonio. > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > --14dae9340d39a1007b04ba96bc8c

Did you look at license agreement for growth edition, especially: 1.2.2) Install Memory Allocation Limit - total of sixteen (16) Gigabytes of memory allocated (as reflected in the SHMTOTAL tunable parameters of the Program) to support use of all instances of the Program on a single Install. The sum total of all SHMTOTAL parameters set within all instances of the Program in an Install may not exceed 16 Gigabytes of allocated memory, regardless of the amount of physical memory in the physical server. Regards, Hrvoje On 06.03.2012. 18:25, ALBERTO ROMEU PESSONIO FILHO wrote: > Hi folks!! > > I'm trying to set up 3 instances in a huge machine. > 2 of 3 instances have been online, but the third instance can't start because > there are a shared memory conflict, as showed below: > > [informix@valencia01 ~]$ onstat -m > shared memory not initialized for INFORMIXSERVER 'ifxorizon5' > > Message Log File: /informix/logs_informix/ifxorizon5/ifxorizon5.log > 13:54:40 IBM Informix Dynamic Server Started. > 13:54:40 Warning: The IBM IDS Growth Edition license restriction limits > 13:54:40 the total shared memory size for this server to 16777216 KB. > 13:54:40 The maximum allowable shared memory was reset to this size to start > the database server. > 13:54:40 shmget: [EEXIST][17]: key 52584801: shared memory already exists > 13:54:40 mt_shm_init: can't create resident segment > > The key 52584801 belongs to the instance 2. > > I've already set different values for each instance on the parameter > SERVERNUM: > > instance 1 = SERVERNUM 0 > instance 2 = SERVERNUM 1 > instance 3 = SERVERNUM 2 > > But the parameter SHMBASE is the same to the tree instances: SHMBASE > 0x44000000L > > The machine has 32GB of memory: > > instance 1 = 14.7 GB > instance 2 = 11.7 GB > instance 3 will allocate nearly 4GB > > How can I do to calculate SHMBASE? > Could you guys help me? > > Thanks in advance, > Alberto Pessonio. > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > >